class_docstr: The base class for building components. 
  
  Args:
      config (Config): A Config class.
      comp_list (list, optional): A list of component classes. Default: None
code: def is_meta_type(cls, obj):
      # TODO: should we define a protocol (see https://peps.python.org/pep-0544/#defining-a-protocol)
      # to make it more pythonic?
      return isinstance(obj, dict) and "type" in obj
  
imports: import copy
  from typing import Any, Optional
  import yaml
  import paddle
  from paddleseg.cvlibs import manager, Config
  from paddleseg.utils import utils, logger
  from paddleseg.utils.utils import CachedProperty
label_desc: Use image node_id 5 for calling the Builder obj's underlying member method code with example usage: obj.is_meta_type(cls, obj) and returns: unknown